# coding:utf-8

"""
=
+=
-=
*= 乘法运算符
/= 除法运算符
%= 取模运算符
**= 幂运算符
//= 整除运算符

//

b、kb、mb、gb

比较与身份运算符有哪些?
==
!=
>
<
>=
<=
<>      python3弃用
is      判断两个对象存储单元是否相同 a is b
is not  !is

"""